Benzidine Back Catalog number: 43124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PN-18S 1,2,8-Trichloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 674591 Fenthion-sulfone, 100 µg/ml, Acetonitrile, 5ml Price on request 673777 Dazomet, 100 µg/ml, Ethyl acetate, 5ml Price on request